'Oz's' Terry Kinney Joins ABC Limited Series 'Black Box'

He'll play the former teacher/mentor to "Sherlock Holmes" actress Kelly Reilly's central character.

ABC's upcoming limited series Black Box has added an Oz alum to its ranks.

Terry Kinney has boarded the network's limited series The Black Box, The Hollywood Reporter has learned.

The series revolves around Elizabeth Black (Sherlock Holmes' Kelly Reilly), a famed neuroscientist who seems to have it all but struggles with mental illness -- one of many secrets she keeps from her fiance and her family.

For Kinney, the part comes after he had a recurring role on Fox's short-lived The Mob Doctorand guest starred on CBS' Elementary. It marks his first regular role since CBS' NYC 22. He's repped by ICM Partners and Brookside Artist Management.

The Black Box was written by Amy Holden Jones (Mystic Pizza, Indecent Proposal), with Simon Curtis (My Week With Marilyn) on board to direct. The drama will be executive produced by Anne Thomopoulos, Bryan Singer, Ilene Chaiken and Oly Obst, with Chaiken (The L Word) set to serve as showrunner.

ABC picked up Black Boxstraight to series with a 13-episode order in June. The drama marks the first small-screen foray for independent production company Bold Films (Legion, Drive, Only God Forgives), with Sierra Engine tackling international distribution. WME packaged the deal and presold it internationally before the project was scooped up by ABC.

A premiere date has not yet been determined, though the project is being eyed for a January bow contingent on how ABC's freshman class fares.